Africa News Tonight: With a deadline for implementing a cease-fire looming, Sudan’s capital awoke today to the sound of air strikes and anti-aircraft fire for the 37th consecutive day. Nigeria's President Muhammadu Buhari on Monday commissioned an oil plant billed as Africa's largest oil refinery, after years of delays and a week before stepping down from office. Plus, a few weeks ago, Zimbabwe’s Reserve Bank introduced a cryptocurrency using digital gold coins. For this and more, stay tuned to Africa News Tonight!